A049519 - OEIS

A049519

Starting index of a string of exactly 3 consecutive equal digits in decimal expansion of Pi.

154, 178, 602, 856, 984, 1233, 1451, 1599, 1699, 1736, 1890, 2279, 2360, 2377, 2441, 2675, 2708, 2929, 2950, 3152, 3435, 3477, 3504, 3810, 3867, 3993, 4001, 4176, 4256, 4436, 4509, 4576, 4794, 4924, 4929, 4986, 5291, 5356, 5404, 5451, 5676, 5872, 6071

(list; graph; refs; listen; history; text; internal format)

OFFSET

0,1

COMMENTS

Digits 3,1,4,... are indexed 1,2,3,...

LINKS

Harvey P. Dale, Table of n, a(n) for n = 0..1000

MATHEMATICA

e3cdQ[{a_, b_, c_, d_, e_}]:=a!=b&&d!=e&&b==c==d; Flatten[Position[ Partition[ RealDigits[Pi, 10, 7000][[1]], 5, 1], _?(e3cdQ)]]+1 (* Harvey P. Dale, Nov 09 2016 *)

CROSSREFS

Cf. A049514-A049523.

Sequence in context: A278708 A206266 A049515 * A214475 A327775 A053243

Adjacent sequences: A049516 A049517 A049518 * A049520 A049521 A049522

KEYWORD

nonn,base

AUTHOR

Harvey P. Dale

STATUS

approved